For Business
|
Warnings
Data Suite
Forensics
Advertising
Superior Accuracy™

Isaias: 300,000+ without power in Florida in wake of hurricane. Click for the latest.

Dry weather brings a break for Isaias cleanup. Click for the latest forecast.

Altadena, CA

Location

Location News Videos

Use Current Location

Recent

Altadena

California

No results found.

Try searching for a city, zip code or point of interest.

Create Your Account Unlock extended daily and hourly forecasts — all with your free account.

Have an account already? Log In

settings

Altadena, CA Weather

Today WinterCast Local {stormName} Tracker Hourly 10-Day Radar MinuteCast® Monthly Air Quality Health & Activities

Around the Globe

Hurricane Tracker

Severe Weather

Radar & Maps

News

News & Features

Astronomy

Business

Climate

Health

Recreation

Sports

Travel

For Business

Warnings

Data Suite

Forensics

Advertising

Superior Accuracy™

Video

Winter Center

Hourly

10-Day Radar MinuteCast® Monthly Air Quality Health & Activities

View hourly forecasts 10-days ahead

Activate Your Premium+ Subscription

8 PM

61°

RealFeel® 58°

Cool

RealFeel Guide

Cool

53° to 62°

Light jacket or sweater may be appropriate.

49%

Showers

Wind Advisory

5:00 AM Sunday - 5:00 AM Monday

WindS 8 mph

Air QualityFair

Wind Gusts9 mph

Humidity78%

Indoor Humidity62% (Ideal Humidity)

Dew Point55° F

AccuLumen Brightness Index™0 (Dark)

Cloud Cover94%

Visibility5 mi

Cloud Ceiling3700 ft

9 PM

61°

RealFeel® 55°

Cool

RealFeel Guide

Cool

53° to 62°

Light jacket or sweater may be appropriate.

56%

Showers

Wind Advisory

5:00 AM Sunday - 5:00 AM Monday

WindS 8 mph

Air QualityFair

Wind Gusts8 mph

Humidity80%

Indoor Humidity62% (Ideal Humidity)

Dew Point54° F

AccuLumen Brightness Index™0 (Dark)

Cloud Cover94%

Rain0.06 in

Visibility5 mi

Cloud Ceiling3700 ft

10 PM

60°

RealFeel® 58°

Cool

RealFeel Guide

Cool

53° to 62°

Light jacket or sweater may be appropriate.

49%

Cloudy

Wind Advisory

5:00 AM Sunday - 5:00 AM Monday

WindS 7 mph

Air QualityFair

Wind Gusts8 mph

Humidity81%

Indoor Humidity62% (Ideal Humidity)

Dew Point54° F

AccuLumen Brightness Index™0 (Dark)

Cloud Cover93%

Visibility10 mi

Cloud Ceiling3700 ft

11 PM

60°

RealFeel® 58°

Cool

RealFeel Guide

Cool

53° to 62°

Light jacket or sweater may be appropriate.

16%

Cloudy

Wind Advisory

5:00 AM Sunday - 5:00 AM Monday

WindSSE 7 mph

Air QualityFair

Wind Gusts7 mph

Humidity82%

Indoor Humidity62% (Ideal Humidity)

Dew Point54° F

AccuLumen Brightness Index™0 (Dark)

Cloud Cover90%

Visibility10 mi

Cloud Ceiling3700 ft

Hourly Weather Forecast for Altadena

AccuWeather's hourly forecast for Altadena provides hour-by-hour temperatures, RealFeel® Temperature, and precipitation probability through the next 10 days. The current hour shows 61° with a RealFeel® of 58°, showers with a 49% chance of precipitation. Each hourly forecast includes wind speed, humidity, air quality, UV index, and the AccuLumen Brightness Index™, AccuWeather's measure of perceived outdoor light intensity. Forecasts are generated by proprietary systems developed by AccuWeather meteorologists since 1962.

Further Ahead

Tomorrow

Tuesday

10-Day

Around the Globe

Hurricane Tracker

Severe Weather

Radar & Maps

News

Video

Winter Center

Top Stories

Hurricane

Isaias made hurricane history before unleashing 116-mph winds, tornado...

10 hours ago

Hurricane

Family evacuates right before Isaias tears top floor off condo

14 hours ago

Hurricane

Hurricane Simon to bring destructive winds, flooding to Mexico

3 hours ago

Hurricane

Dry weather aids Isaias cleanup as Northeast flood risk lingers

4 hours ago

Hurricane

Rachel to drench southwestern US; flash flooding to threaten lives

3 hours ago

Featured Stories

Winter Weather

Winter forecast 2026-2027: El Niño to reshape snow, cold across US

3 days ago

Weather News

Hilarious animal photos from this year’s Comedy Wildlife Awards

11 hours ago

Flash flood sweeps away 40 homes in Nepal weeks after disaster

11 hours ago 0:44

Astronomy

Margaret Hamilton, whose software helped land Apollo astronauts on the...

3 days ago

Climate

This island was home to the planet’s largest penguin colony. Here’s wh...

3 days ago

World North America United States California Altadena

Weather Near Altadena:

Anaheim, CA
Long Beach, CA
Los Angeles, CA

Company

Proven Superior Accuracy™ About AccuWeather Digital Advertising Careers Press Contact Us

Products & Services

For Business For Partners For Advertising AccuWeather APIs AccuWeather Connect Personal Weather Stations

Apps & Downloads

iPhone App Android App See all Apps & Downloads

Subscription Services

AccuWeather Premium AccuWeather Professional

More

AccuWeather Ready Business Health Hurricane Leisure and Recreation Severe Weather Space and Astronomy Sports Travel Weather News Winter Center

Company

Proven Superior Accuracy™ About AccuWeather Digital Advertising Careers Press Contact Us

Products & Services

For Business For Partners For Advertising AccuWeather APIs AccuWeather Connect Personal Weather Stations

Apps & Downloads

iPhone App Android App See all Apps & Downloads

Subscription Services

AccuWeather Premium AccuWeather Professional

More

AccuWeather Ready Business Health Hurricane Leisure and Recreation Severe Weather Space and Astronomy Sports Travel Weather News Winter Center

© 2026 AccuWeather, Inc. "AccuWeather" and sun design are registered trademarks of AccuWeather, Inc. All Rights Reserved.

Terms of Use | Privacy Policy | Cookie Policy | About Your Privacy Do Not Sell or Share My Personal Information | Data Sources

...

...

...